| 摘要 |
An electromechanical joystick assembly comprising an operating lever (10) which is pivotally mounted to a housing by means of an electrically conductive mounting member (23), which is in contact with an electrically conductive spring (32) mounted to the inner side wall of the housing. The operating lever (10) is pivoted to the mounting member (23) by a conductive pin (24). The inner side walls of the housing (20) have an electrically conductive coating and a ground conductor is provided on a printed circuit board (PCB 1 or PCB 2) which is in contact with a portion of the inner side wall. Thus the operating lever (10) is connected to ground by the conductive pin (24), the mounting member (23) and the spring (32). Because the lever is grounded in this way, it is prevented from acting as an aerial for any stray signals generated externally or within the assembly, and an electrostatic discharge path is provided from the operating lever to ground. The joystick assembly therefore exhibits effective electromagnetic compatibility.
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